CN104874210A - Rapid foam inhibitor - Google Patents
Rapid foam inhibitor Download PDFInfo
- Publication number
- CN104874210A CN104874210A CN201510302279.3A CN201510302279A CN104874210A CN 104874210 A CN104874210 A CN 104874210A CN 201510302279 A CN201510302279 A CN 201510302279A CN 104874210 A CN104874210 A CN 104874210A
- Authority
- CN
- China
- Prior art keywords
- silicon oil
- foam inhibitor
- percent
- emulsifying agent
- defoaming
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Degasification And Air Bubble Elimination (AREA)
- Silicon Polymers (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
The invention discloses a rapid foam inhibitor. The rapid foam inhibitor comprises the following raw materials in percent by weight: 8 to 15 percent of trifluoropropyl modified silicon polyether, 5 to 10 percent of dimethyl silicon oil, 4 to 7 percent of hydroxyl silicon oil, 10 to 20 percent of high-boiling silicon oil, 7 to 12 percent of emulsifying agent, 2 to 4 percent of thickening agent and 42 to 55 percent of deionized water. The rapid foam inhibitor is prepared by adopting the trifluoropropyl modified silicon polyether, the dimethyl silicon oil, the hydroxyl silicon oil and the high-boiling silicon oil as main defoaming active components and adding the emulsifying agent, the thickening agent and the deionized water, and has the characteristics of small amount of use, fast defoaming, long foam inhibiting time, excellent dispersing performance and lasting defoaming, good stability, no toxicity and no odor and the like; due to the addition of the trifluoropropyl modified silicon polyether, not only can the defoaming active components be emulsified, but also the defoaming capability can be improved; due to addition of the silicon oil, the good and rapid effects of defoaming and foam inhibition can be obtained by reducing the surface tension; and the rapid foam inhibitor is strong in defoaming capability, and can be widely applied in the industries of paper making, printing ink, coating and chemical engineering and the like.
Description
Technical field
The present invention relates to technical field of fine chemical preparations, specifically a kind of foam inhibitor fast.
Background technology
In many industrial production, can produce a large amount of foam, foam is phenomenon common in the industrial process such as industry cleaning link, sewage disposal, textile printing and dyeing, cement applications, starch gelatinization, and different system foaming reasons is had nothing in common with each other.The existence of foam can bring very large harm to industrial production, such as, make production capacity reduce; Cause the waste of raw material and product; Extend reaction time; Affect product quality; Be unfavorable for accurate-metering; Contaminated environment; Cause accident etc.Therefore, overcome these foams and will manage eliminate foam and suppress the generation of foam to industrial adverse effect, adding foam inhibitor is a kind of not only easy, but also economic froth breaking mode.
At present, common foam inhibitor kind has: polyether-type, organic silicon type, non-silicon type and silicon are ether mixed.Dissimilar according to active constituent, foam inhibitor is mainly divided into organosilicon foam inhibitor and non-organic silicon foam inhibitor: the feature of organosilicon foam inhibitor is that antifoaming speed is fast, and it is long to press down the bubble time, but with bubbling system poor compatibility, easily formation silicon spot, the defects such as shrinkage cavity; The feature of non-organic silicon foam inhibitor is that surface tension is higher than polysiloxane, not easily sprawls at foam surface and comes.Therefore, generally antifoaming performance not as organosilyl good.In industry cleaning link industry, organosilicon foam inhibitor compares and is favored.
Summary of the invention
The object of the present invention is to provide one to have consumption few, antifoaming speed is fast, presses down the quick foam inhibitor of the features such as the bubble time is long, and dispersive property is excellent and froth breaking enduring quality is outstanding, good stability, nonpoisonous and tasteless.
For achieving the above object, the invention provides following technical scheme:
A kind of foam inhibitor fast, comprises trifluoro propyl modified silicon polyethers 8-15%, dimethicone 5-10%, hydroxy silicon oil 4-7%, high boiling point silicon oil 10-20%, emulsifying agent 7-12%, thickener 2-4%, deionized water 42-55% according to the raw material of mass percent.
As the further scheme of the present invention: comprise trifluoro propyl modified silicon polyethers 11%, dimethicone 8%, hydroxy silicon oil 6%, high boiling point silicon oil 13%, emulsifying agent 10%, thickener 3%, deionized water 49% according to the raw material of mass percent.
As the further scheme of the present invention: described high boiling-point silicon oil viscosity is 400-450mPas.
As the further scheme of the present invention: described emulsifying agent is the one of Tween-20, Tween-40, Tween-60, Tween-80 and Arlacel-20, Arlacel-40, Arlacel-60, Arlacel-80.
As the further scheme of the present invention: described thickener is the one of polyvinyl alcohol, white carbon and Silica hydrogel.
The preparation method of described quick foam inhibitor, concrete steps are:
(1) take dimethicone, hydroxy silicon oil, high boiling point silicon oil and trifluoro propyl modified silicon polyethers in proportion and drop in reactor, temperature of reaction kettle being risen to 110 DEG C, stir, speed of agitator is 70-80rpm, and mixing time is 1h;
(2) temperature of reaction kettle is risen to 150 DEG C, continue to stir, speed of agitator is 70-80rpm, and mixing time is 2h;
(3) in reactor, add thickener, temperature of reaction kettle is risen to 240-250 DEG C and stir, speed of agitator is 55-60rpm, and mixing time is 3h;
(4) reactor is down to 100 DEG C, in reactor, adds emulsifying agent, deionized water, insulated and stirred 3h;
(5) question response still naturally cools to 80 DEG C, stirs bottom discharge, and after cooling, packaging, is products obtained therefrom.
Compared with prior art, the invention has the beneficial effects as follows: the present invention is main defoaming activity composition with trifluoro propyl modified silicon polyethers, dimethicone, hydroxy silicon oil, high boiling point silicon oil, by adding the obtained a kind of foam inhibitor fast of emulsifying agent, thickener and deionized water, there is consumption few, antifoaming speed is fast, but the bubble time is long, and dispersive property is excellent and froth breaking enduring quality is outstanding, good stability, the feature such as nonpoisonous and tasteless; Trifluoro propyl modified silicon polyethers both can emulsification defoaming activity composition, also had froth breaking effect, improved defoaming capacity; Silicone oil, by reducing surface tension, can obtain good, froth breaking and press down the effect of bubble rapidly; Defoaming capacity of the present invention is strong, can be widely used in the industries such as papermaking, ink, coating, chemical industry.
Detailed description of the invention
Below in conjunction with the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, a kind of foam inhibitor fast, comprises trifluoro propyl modified silicon polyethers 8%, dimethicone 10%, hydroxy silicon oil 7%, high boiling point silicon oil 10%, emulsifying agent 7%, thickener 4%, deionized water 54% according to the raw material of mass percent.High boiling-point silicon oil viscosity is 400-450mPas.Emulsifying agent is Tween-20.Thickener is white carbon.
The preparation method of described quick foam inhibitor, concrete steps are:
(1) take dimethicone, hydroxy silicon oil, high boiling point silicon oil and trifluoro propyl modified silicon polyethers in proportion and drop in reactor, temperature of reaction kettle being risen to 110 DEG C, stir, speed of agitator is 70-80rpm, and mixing time is 1h;
(2) temperature of reaction kettle is risen to 150 DEG C, continue to stir, speed of agitator is 70-80rpm, and mixing time is 2h;
(3) in reactor, add thickener, temperature of reaction kettle is risen to 240-250 DEG C and stir, speed of agitator is 55-60rpm, and mixing time is 3h;
(4) reactor is down to 100 DEG C, in reactor, adds emulsifying agent, deionized water, insulated and stirred 3h;
(5) question response still naturally cools to 80 DEG C, stirs bottom discharge, and after cooling, packaging, is products obtained therefrom.
Embodiment 2
In the embodiment of the present invention, in the embodiment of the present invention, a kind of foam inhibitor fast, comprises trifluoro propyl modified silicon polyethers 11%, dimethicone 6%, hydroxy silicon oil 5%, high boiling point silicon oil 13%, emulsifying agent 8%, thickener 2%, deionized water 55% according to the raw material of mass percent.High boiling-point silicon oil viscosity is 400-450mPas.Emulsifying agent is Arlacel-40.Thickener is polyvinyl alcohol.
The preparation method of described quick foam inhibitor, concrete steps are:
(1) take dimethicone, hydroxy silicon oil, high boiling point silicon oil and trifluoro propyl modified silicon polyethers in proportion and drop in reactor, temperature of reaction kettle being risen to 110 DEG C, stir, speed of agitator is 70-80rpm, and mixing time is 1h;
(2) temperature of reaction kettle is risen to 150 DEG C, continue to stir, speed of agitator is 70-80rpm, and mixing time is 2h;
(3) in reactor, add thickener, temperature of reaction kettle is risen to 240-250 DEG C and stir, speed of agitator is 55-60rpm, and mixing time is 3h;
(4) reactor is down to 100 DEG C, in reactor, adds emulsifying agent, deionized water, insulated and stirred 3h;
(5) question response still naturally cools to 80 DEG C, stirs bottom discharge, and after cooling, packaging, is products obtained therefrom.
Embodiment 3
In the embodiment of the present invention, in the embodiment of the present invention, a kind of foam inhibitor fast, comprises trifluoro propyl modified silicon polyethers 11%, dimethicone 8%, hydroxy silicon oil 6%, high boiling point silicon oil 13%, emulsifying agent 10%, thickener 3%, deionized water 49% according to the raw material of mass percent.High boiling-point silicon oil viscosity is 400-450mPas.Emulsifying agent is Tween-80.Thickener is Silica hydrogel.
The preparation method of described quick foam inhibitor, concrete steps are:
(1) take dimethicone, hydroxy silicon oil, high boiling point silicon oil and trifluoro propyl modified silicon polyethers in proportion and drop in reactor, temperature of reaction kettle being risen to 110 DEG C, stir, speed of agitator is 70-80rpm, and mixing time is 1h;
(2) temperature of reaction kettle is risen to 150 DEG C, continue to stir, speed of agitator is 70-80rpm, and mixing time is 2h;
(3) in reactor, add thickener, temperature of reaction kettle is risen to 240-250 DEG C and stir, speed of agitator is 55-60rpm, and mixing time is 3h;
(4) reactor is down to 100 DEG C, in reactor, adds emulsifying agent, deionized water, insulated and stirred 3h;
(5) question response still naturally cools to 80 DEG C, stirs bottom discharge, and after cooling, packaging, is products obtained therefrom.
Embodiment 4
In the embodiment of the present invention, a kind of foam inhibitor fast, comprises trifluoro propyl modified silicon polyethers 9%, dimethicone 9%, hydroxy silicon oil 5%, high boiling point silicon oil 15%, emulsifying agent 8%, thickener 4%, deionized water 50% according to the raw material of mass percent.High boiling-point silicon oil viscosity is 400-450mPas.Emulsifying agent is Arlacel-20.Thickener is Silica hydrogel.
The preparation method of described quick foam inhibitor, concrete steps are:
(1) take dimethicone, hydroxy silicon oil, high boiling point silicon oil and trifluoro propyl modified silicon polyethers in proportion and drop in reactor, temperature of reaction kettle being risen to 110 DEG C, stir, speed of agitator is 70-80rpm, and mixing time is 1h;
(2) temperature of reaction kettle is risen to 150 DEG C, continue to stir, speed of agitator is 70-80rpm, and mixing time is 2h;
(3) in reactor, add thickener, temperature of reaction kettle is risen to 240-250 DEG C and stir, speed of agitator is 55-60rpm, and mixing time is 3h;
(4) reactor is down to 100 DEG C, in reactor, adds emulsifying agent, deionized water, insulated and stirred 3h;
(5) question response still naturally cools to 80 DEG C, stirs bottom discharge, and after cooling, packaging, is products obtained therefrom.
Embodiment 5
In the embodiment of the present invention, a kind of foam inhibitor fast, comprises trifluoro propyl modified silicon polyethers 15%, dimethicone 5%, hydroxy silicon oil 4%, high boiling point silicon oil 20%, emulsifying agent 12%, thickener 2%, deionized water 42% according to the raw material of mass percent.High boiling-point silicon oil viscosity is 400-450mPas.Emulsifying agent is Arlacel-60.Thickener is polyvinyl alcohol.
The preparation method of described quick foam inhibitor, concrete steps are:
(1) take dimethicone, hydroxy silicon oil, high boiling point silicon oil and trifluoro propyl modified silicon polyethers in proportion and drop in reactor, temperature of reaction kettle being risen to 110 DEG C, stir, speed of agitator is 70-80rpm, and mixing time is 1h;
(2) temperature of reaction kettle is risen to 150 DEG C, continue to stir, speed of agitator is 70-80rpm, and mixing time is 2h;
(3) in reactor, add thickener, temperature of reaction kettle is risen to 240-250 DEG C and stir, speed of agitator is 55-60rpm, and mixing time is 3h;
(4) reactor is down to 100 DEG C, in reactor, adds emulsifying agent, deionized water, insulated and stirred 3h;
(5) question response still naturally cools to 80 DEG C, stirs bottom discharge, and after cooling, packaging, is products obtained therefrom.
The present invention is main defoaming activity composition with trifluoro propyl modified silicon polyethers, dimethicone, hydroxy silicon oil, high boiling point silicon oil, by adding the obtained a kind of foam inhibitor fast of emulsifying agent, thickener and deionized water, there is consumption few, antifoaming speed is fast, but the bubble time is long, the features such as dispersive property is excellent and froth breaking enduring quality is outstanding, good stability, nonpoisonous and tasteless; Trifluoro propyl modified silicon polyethers both can emulsification defoaming activity composition, also had froth breaking effect, improved defoaming capacity; Silicone oil, by reducing surface tension, can obtain good, froth breaking and press down the effect of bubble rapidly; Defoaming capacity of the present invention is strong, can be widely used in the industries such as papermaking, ink, coating, chemical industry.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.
In addition, be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (6)
1. a quick foam inhibitor, it is characterized in that, comprise trifluoro propyl modified silicon polyethers 8-15%, dimethicone 5-10%, hydroxy silicon oil 4-7%, high boiling point silicon oil 10-20%, emulsifying agent 7-12%, thickener 2-4%, deionized water 42-55% according to the raw material of mass percent.
2. quick foam inhibitor according to claim 1, it is characterized in that, comprise trifluoro propyl modified silicon polyethers 11%, dimethicone 8%, hydroxy silicon oil 6%, high boiling point silicon oil 13%, emulsifying agent 10%, thickener 3%, deionized water 49% according to the raw material of mass percent.
3., according to the arbitrary described quick foam inhibitor of claim 1-2, it is characterized in that, described high boiling-point silicon oil viscosity is 400-450mPas.
4., according to the arbitrary described quick foam inhibitor of claim 1-2, it is characterized in that, described emulsifying agent is the one of Tween-20, Tween-40, Tween-60, Tween-80 and Arlacel-20, Arlacel-40, Arlacel-60, Arlacel-80.
5., according to the arbitrary described quick foam inhibitor of claim 1-2, it is characterized in that, described thickener is the one of polyvinyl alcohol, white carbon and Silica hydrogel.
6. a preparation method for the quick foam inhibitor as described in as arbitrary in claim 1-2, it is characterized in that, concrete steps are:
(1) take dimethicone, hydroxy silicon oil, high boiling point silicon oil and trifluoro propyl modified silicon polyethers in proportion and drop in reactor, temperature of reaction kettle being risen to 110 DEG C, stir, speed of agitator is 70-80rpm, and mixing time is 1h;
(2) temperature of reaction kettle is risen to 150 DEG C, continue to stir, speed of agitator is 70-80rpm, and mixing time is 2h;
(3) in reactor, add thickener, temperature of reaction kettle is risen to 240-250 DEG C and stir, speed of agitator is 55-60rpm, and mixing time is 3h;
(4) reactor is down to 100 DEG C, in reactor, adds emulsifying agent, deionized water, insulated and stirred 3h;
(5) question response still naturally cools to 80 DEG C, stirs bottom discharge, and after cooling, packaging, is products obtained therefrom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510302279.3A CN104874210A (en) | 2015-06-05 | 2015-06-05 | Rapid foam inhibitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510302279.3A CN104874210A (en) | 2015-06-05 | 2015-06-05 | Rapid foam inhibitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104874210A true CN104874210A (en) | 2015-09-02 |
Family
ID=53942046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510302279.3A Pending CN104874210A (en) | 2015-06-05 | 2015-06-05 | Rapid foam inhibitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104874210A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105238367A (en) * | 2015-10-23 | 2016-01-13 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Environment-friendly defoaming agent for well drilling and preparation method thereof |
| CN106215468A (en) * | 2016-08-29 | 2016-12-14 | 枣阳市金鹏化工有限公司 | A kind of silicone antifoaming agent and preparation method thereof |
| CN108379882A (en) * | 2018-02-07 | 2018-08-10 | 广州采润化工有限公司 | A kind of water and oil applicable type organic silicon defoamer preparation method and corresponding water and oil applicable type organic silicon defoamer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1613537A (en) * | 2004-09-22 | 2005-05-11 | 曹治平 | High-temperature defoamer and its preparation |
| JP2009262080A (en) * | 2008-04-25 | 2009-11-12 | San Nopco Ltd | Surfactant |
| CN102350097A (en) * | 2011-07-18 | 2012-02-15 | 南通恒尔特高分子材料科技有限公司 | Silicone-polyether antifoaming agent and preparation method thereof |
| CN102949867A (en) * | 2012-09-19 | 2013-03-06 | 天津科创医药中间体技术生产力促进有限公司 | High-efficiency antifoaming agent |
| CN103044687A (en) * | 2012-12-21 | 2013-04-17 | 江苏美思德化学股份有限公司 | Fluorine contained organosilicon-polyether copolymer and preparation method thereof |
| CN103877755A (en) * | 2014-03-11 | 2014-06-25 | 苏州恒康新材料有限公司 | Organic silicon defoaming agent and preparation method thereof |
| US20150141561A1 (en) * | 2012-06-08 | 2015-05-21 | Dow Corning Toray Co., Ltd. | Carboxy silicone containing composition and process for preparing the composition |
-
2015
- 2015-06-05 CN CN201510302279.3A patent/CN104874210A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1613537A (en) * | 2004-09-22 | 2005-05-11 | 曹治平 | High-temperature defoamer and its preparation |
| JP2009262080A (en) * | 2008-04-25 | 2009-11-12 | San Nopco Ltd | Surfactant |
| CN102350097A (en) * | 2011-07-18 | 2012-02-15 | 南通恒尔特高分子材料科技有限公司 | Silicone-polyether antifoaming agent and preparation method thereof |
| US20150141561A1 (en) * | 2012-06-08 | 2015-05-21 | Dow Corning Toray Co., Ltd. | Carboxy silicone containing composition and process for preparing the composition |
| CN102949867A (en) * | 2012-09-19 | 2013-03-06 | 天津科创医药中间体技术生产力促进有限公司 | High-efficiency antifoaming agent |
| CN103044687A (en) * | 2012-12-21 | 2013-04-17 | 江苏美思德化学股份有限公司 | Fluorine contained organosilicon-polyether copolymer and preparation method thereof |
| CN103877755A (en) * | 2014-03-11 | 2014-06-25 | 苏州恒康新材料有限公司 | Organic silicon defoaming agent and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 焦学瞬等编著: "《消泡剂制备与应用》", 30 June 1996, 中国轻工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105238367A (en) * | 2015-10-23 | 2016-01-13 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Environment-friendly defoaming agent for well drilling and preparation method thereof |
| CN106215468A (en) * | 2016-08-29 | 2016-12-14 | 枣阳市金鹏化工有限公司 | A kind of silicone antifoaming agent and preparation method thereof |
| CN108379882A (en) * | 2018-02-07 | 2018-08-10 | 广州采润化工有限公司 | A kind of water and oil applicable type organic silicon defoamer preparation method and corresponding water and oil applicable type organic silicon defoamer |
| CN108379882B (en) * | 2018-02-07 | 2020-07-24 | 广州采润新材料有限公司 | Preparation method of water-oil universal type organic silicon defoaming agent and corresponding water-oil universal type organic silicon defoaming agent |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103028275B (en) | Preparation method of solid organic silicon defoamer | |
| JP5567743B2 (en) | Silicone composition for elastomer foam | |
| CN103877755B (en) | A kind of silicone defoaming agent and preparation method thereof | |
| CN105148571A (en) | Preparation method of defoaming agent for waterborne system | |
| AU613748B2 (en) | Silicone foam control composition | |
| CN101884852A (en) | Method for improving properties of polyether defoaming agent | |
| CN101798781A (en) | Silicone defoaming agent for papermaking and pulping and preparation method thereof | |
| CN110898467B (en) | Defoaming active substance, preparation method thereof and defoaming agent | |
| CN105944406B (en) | A kind of food defoamer | |
| CN105498303B (en) | A kind of organic silicon defoamer and preparation method thereof | |
| KR100979973B1 (en) | Method for the production of defoamer formulations | |
| CN102895805B (en) | The preparation method of non-silicon defoaming agent | |
| CN102489048A (en) | Antifoaming agent composition and preparation method thereof | |
| CN104307215A (en) | Vegetable oil modified defoaming agent and preparation method thereof | |
| CN104069654A (en) | Preparation method of high-viscosity organic silicon defoamer | |
| CN111760333B (en) | Defoaming agent composition and preparation method and application thereof | |
| CN107469411B (en) | A kind of preparation method of organic silicon defoamer | |
| CN104874210A (en) | Rapid foam inhibitor | |
| CN103641195A (en) | Organic silicon defoamer and preparation method thereof | |
| CN104906832A (en) | Polyether ester/mineral oil composite defoaming agent and preparation method thereof | |
| CN106731034A (en) | A kind of compound defoamer | |
| CN111974032A (en) | Modified organic silicon defoaming agent and preparation method thereof | |
| CN103669108A (en) | Organic silicon defoamer for paper making industry and preparation method thereof | |
| CN110075573A (en) | A kind of silicate-containing oil and the defoaming agent of epoxidized soybean oil and preparation method thereof | |
| CN105289048A (en) | Organic silicon-modified polyether ester emulsion defoamer and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150902 |
|
| WD01 | Invention patent application deemed withdrawn after publication |